135729 ⎘
Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil using explosives in boreholes; using projectiles penetrating the wall
Tunneling and mining method using pre-conditioned hole pattern
#2METHOD AND SYSTEM FOR ACQUIRING GEOLOGICAL DATA FROM A BORE HOLE
#3Subterranean well torpedo system
#4Method and system for acquiring geological data from a bore hole
#5Method for extracting a core from a percussion side wall core bullet for a digital tomographic description and direct numerical simulations
#6Target composite core apparatus for radial flow geometry
#7System for acoustic navigation of boreholes
#8Ram accelerator system with baffles
#9Kinetic penetrator with a retrieval tether
#10Resistor-based Ignition System for a Core Gun
#11Apparatus and methods for sidewall percussion coring using a voltage activated igniter
#12Downhole formation testing tool
#13Downhole formation testing tool
#14System for generation of thermal energy